Posted on 09/23/2010 6:01:49 PM PDT by SunkenCiv
A sudden and sharp rise in the 14C-content of the atmosphere, which occurred between ca 850 and 760 calendar years BC (ca 2750-2450 BP on the radiocarbon time scale), was contemporaneous with an abrupt climate change.
In NW-Europe (as indicated by palaeoecological and geological evidence) climate changed from relatively warm and continental to oceanic (cooler and wetter).
Archaeological and palaeoecological evidence for the abandonment of low-lying areas at the Bronze Age/Iron Age transition in The Netherlands is interpreted as the effect of a rise of the water table and the extension of fens and bogs.
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The discussed oscillation of 14C at ca 2650 BP was probably caused by a reduced solar activity which could also have been the forcing mechanism behind the recorded cool event.
An important effect of a reduced solar activity is an increase in the cosmic-ray flux leading to a higher production of 14C in the stratosphere and an increased cloudiness and precipitation.
The reduction in solar (ultraviolet) radiation may also have lead to a decline in ozone production in the lower stratosphere and the latter process may have been the trigger mechanism responsible for the inferred climate changes, because a decrease in the stratospheric ozone content produced cooling of the lower stratosphere by the absorption of less sunlight.
This could have resulted in a decrease of the latitudinal extension of the Hadley Cell circulation and a possible associated weakening of monsoons, which would be consistent with inferred drier conditions in the tropics.
Furthermore an expansion of the Polar Cells and a repositioning of the main depression tracks at mid-latitudes towards the equator may have occurred.
This probably has resulted in the reconstructed change to cooler and wetter conditions at middle latitudes in both hemispheres around 2650 BP.
(Excerpt) Read more at knowledge.co.uk ...
interesting.
do you have references on East/central asian migrations? I’m “studying” the Bronze age, including the collapses of 3000 bce and 1200 bce, and wonder if there is stuff in the India/Chinese literature about this.
Well,...as it is said....time to move on!
Didn’t the original “snickering hound” make his first appearence on Huckleberry Hound in the early to mid 60’s?
At post 18, it was noted that this was the time of the migration of the Celts to Britain. I wonder if, upon their arrival, they stumbled into Bran Mak Morn and his merry band of Picts.
I suspect (based upon readings from the book Where Troy Once Stood, and other information) that there was at least one major migration of Celts into Britain much earlier, probably no later than 1600 BC.
At that time (650BC) the Milesian Celts still depended on Greek scribes, so their business was recorded in Greek. The Galicians have such materials.
Remember, during this period some Celtic areas were very primitive ~ not quite bronze age, and other Celtic areas were very advanced.
The Romans (300BC) regularly hunted for suitible agricultural slaves in what is now Serbia, et al. That's where we get our word "Slav".
My impression is there are a lot of folks who want to be Picts ~ probably in the belief that they were brave warriors who harrassed the Roman invaders (who were presumably all Italians).
It's most likely that the Roman agriculturalists who came to Britain were as Celtic as the folks already there ~ probably a lot of them from Spain (already a Roman colony since the defeat of Carthage), and others from Province (literally a part of Rome in Gaul for centuries), and most likely surplus/excess warrior types from Ireland ~ readily hired by the Romans.
Remember, Rome didn't invade and conquer Ireland. Recent archaeological finds demonstrate a surprisingly high technological standard in the Ireland of those days ~ dentistry, eye surgery, trepanning techniques, bone setting, etc.
Regarding the Roman army that settled in Britain, it, too seemed to have something other than a Mediterranean origin. The King Arthur story (if not King Arthur) appears to have originated North of the Black Sea in an area favored by the Romans for soldiery on the Empire's periphery ~ probably "cold adapted" people!
Current DNA studies even show that the underlying population in Britain continues to be of predominantly Celtic origin with only a smidgeon of Saxon or Mediterranean ancestry in the mix.
Fur Shur the invaders of 650 BC brought their languages with them, and were able to culturally and politically dominate Ireland and later Britain. Genetically they brought enough of the neighboring Basque population with them to create the current situation which is that the Irish and the Basques are essentially the exact same people (genetically). No doubt later periods saw even more Basques arrive in Britain from Spain and Gaul.
By the time we get up to 750 AD, the Celts from Spain were moving from Britain into Brittany, and, just a tad later, back into Spain as Cornish knights come to kick some Moslem booty!
China has recurring droughts in the North so people flee South ~ but the really big movements are further West around the Himalaya mountains.
What you must always keep in mind is that Earth has THREE icecaps. One is in the Arctic, one in the Antarctic, and one is up hill in the Himalayas. When you get a major climate change one way or the other the Himalayas magnify the effect on the surrounding areas. When it gets colder, areas down-wind, e.g. China, have mega droughts and desertification. When it gets warmer, areas down-stream, e.g. Bengal, Thiland, Burma, get flooded out.
Still, not all climate change is that dramatic ~ you get smaller changes, and the Turks West of the mountains move South. The Turks East of the mountains also move South. Then, when climate improves for the herds, the Turks move back North. In one case, the Sakha got booted out in 200 AD or thereabouts by the Hindu Revolution ~ they went all the way back to their homeland in Siberia ~ then got bing-bonged by the climate anomaly that started the Dark Ages.
This time they went East and conquered Korea and Japan (they still live in Japan and consist primarily of the old Daimyo families).
In the Dark Ages recovery period, the first folks off the dime were the Arabs from the Saudi Peninsula. They were sufficiently aggressive they managed to invade India from the South and pushed North along the Indus thereby PREVENTING the traditional Turkish invasion.
The Turks moved further West and invaded Anatolia, then finally Syria, the Levant, Arabia and Egypt ~ eventually seizing everything until they, themselves, were edged out by Mongol interests (Mongols and Turks are identifiably different in all AD time periods).
Russian archaeologists have gotten pretty good at working much of this out ~ remember, up until quite recently herding cultures were considered NOMADIC. The facts are most such cultures controlled vast amounts of land and knew quite well what their boundaries were. They lived in tents and yurts in Summer, and wattle and daub huts in Winter. But they were certainly well-armed!
That particular Howard character showed some promise, but between his being a quantity-over-quality kind of guy, and having shortened his own life, it might have been interesting to see what he’d have done with Bran Mak Morn.
Interesting observations. One more nail in the AGW theory.
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